Night of Camp David--this book is too expensive to buy right now--

https://www.amazon.com/Night-Camp-David-Fletcher-Knebel/dp/0060124202 I bought and read 7 Days in May, about a coup in America,(fiction) before it rose to its current price of $50. I hope someone will bring out cheaper editions if they can contact the writer's estate and get permission. 9-6-2018